Look for the specific URL it is trying to reach. If you see a (Not Found) or 403 (Forbidden), you know the issue is IIS/Permissions related. Summary Checklist BIOS Time: Is it synced with the server? MP Status: Is IIS running on the Management Point? Deployment: Did you "Clear Required PXE Deployments"?
The client machine resides in an IP subnet that is not assigned to a valid SCCM Boundary Group. Step-by-Step Troubleshooting Guide
Find the exact hardware model network card (e.g., Intel I219-LM or Realtek PCIe).
. There it was, highlighted in the cruel red of a critical error: unable to download pxe variable file. exit code 14 sccm
Restart the or SCCM PXE Responder Service . 3. Network Driver Missing in WinPE
-> Run ipconfig to verify the machine has a valid IP address.
: WinPE lacks the correct network driver. Look for the specific URL it is trying to reach
for your hardware manufacturer:
(Note: If you have CMTrace injected into your boot image, use that for real-time tracking instead).
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. MP Status: Is IIS running on the Management Point
Look for the following accompanying error signatures around the Exit Code 14 message:
After further investigation, John discovers that the issue is caused by a mismatch between the computer's BIOS and the PXE boot file. The computer's BIOS is set to use UEFI booting, but the PXE boot file is configured for legacy BIOS booting.